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well...9*8 are factors of 72 what are factors of 9 and 8?

9=3x3
8=4x2

|dw:1351533419803:dw|

yeah, and then the factors of 4 are? :D

ok so, for 72 we have: 3 * 3 * 2 * 2 *2 that can also be seen as\[3^2*2^3\]

So how do I write it out?

just like that.
3^2 * 2^3 = 72

Wow! Thank you so much! What about the other two problems?

Factors of 84 are?

idk?

28 * 3 = 84 can you do the tree from here knowing this?

|dw:1351536340629:dw|
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